Seiko Cal. 7075 - 457

Seiko 7075-457

This Spring Drive model from 1975 features a 40mm Hardlex-Coated Steel case. Powered by the 7075 caliber with 30j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-7be9f819b944]

Also known as: Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
8.7mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
170m
Dial Color
Navy
Jewels
30j
Frequency
21,600 bph
Power Reserve
52 hours
Year
1975

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